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natulia [17]
3 years ago
5

8 - 5.5 = 10.5 - 8= 13 - 10.5 = 15.5 - 13=

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
7 0
1. ) 2.5
2.) 2.5
3.) 2.5
4.) 2.5
Lol wow :)
Free_Kalibri [48]3 years ago
6 0

1) 2.5

2) 2.5

3) 2.5

4) 2.5

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The weights of soy patties sold by Veggie Burgers Delight are normally distributed. A random sample of 15 patties yields a mean
Elden [556K]

Answer:

t=\frac{3.8-4}{\frac{0.5}{\sqrt{15}}}=-1.549    

Step-by-step explanation:

Data given and notation  

\bar X=3.8 represent the sample mean

s=0.5 represent the sample standard deviation for the sample  

n=15 sample size  

\mu_o =4 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean weight is less than 4 ounces, the system of hypothesis would be:  

Null hypothesis:\mu \geq 68  

Alternative hypothesis:\mu < 4  

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{3.8-4}{\frac{0.5}{\sqrt{15}}}=-1.549    

3 0
3 years ago
A rectangle is 3 times as long as it is wide. the perimeter is 60 cm. find the dimensions of the rectangle.round to the nearest
My name is Ann [436]
60 divided by 8 =7.5 (The four sides of a square and then merely add two additional lengths to two sides) Now 7.5 times 3= 22.5 which gives two sides at
22.5cm and two sides at 7.5cm total is 60cm
3 0
3 years ago
Which of the following is equal to 186 ÷ 6?
Strike441 [17]

Answer: D

Step-by-step explanation:

186 / 6 =31

180 / 6 - 6 / 6 = 29

180 + 6 / 6 + 6 = 15.5

180 / 6 + 180 / 6 = 60

180 / 6 + 6 / 6 = 31

Hope this helps!

4 0
4 years ago
Read 2 more answers
A researcher received 14 shipments each containing 7.85 x 10^9 cells.
torisob [31]
The total number of cells received is
109900000000 or 1.099 x 10^11
7 0
4 years ago
If f(x)=(-x) cubed, then f(-3)?
velikii [3]

Answer:

f(-3) = 27

Step-by-step explanation:

f(x) = (-x)^3

We want the value when x =-3

Substitute this in

f(-3) = (--3)^3

f(-3) = 3^3

f(-3) = 27

7 0
3 years ago
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